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LG - UltraGear 27" QHD Glossy OLED 240Hz Gaming Monitor 0.03ms NVIDIA G-SYNC AMD FreeSync Premium Pro DisplayHDR TrueBlack400 - Black

Model: 27GX704A-B
SKU: 6685370
Sold byBest Buy

About this product

The 27" QHD UltraGear OLED gaming monitor is built for next-gen performance, whether you're on PC or console. A glossy finish OLED display, with a sharp QHD (2560 x 1440) resolution delivers razor-sharp visuals, up to 98.5% DCI-P3 color coverage, and VESA DisplayHDR True Black 400 for cinematic contrast and color depth. When every millisecond matters, dominate the action with a 240Hz refresh rate¹, ultra-fast 0.03ms response time, G-SYNC Compatibility, FreeSync Premium Pro, and VESA ClearMR 13000 certification for bright, blur-free, tear-free OLED gameplay. Connectivity is future-ready with two HDMI ports, USB (x3) and DisplayPort 1.4, keeping you locked in on the latest hardware. The fully adjustable stand—tilt, height, swivel, and pivot—lets you play your way, with comfort and control.

Highlights

Features

  • LG UltraGear OLED Goes Glossy

    Experience ultra-smooth, tear-free gameplay with up to 240Hz refresh rate¹ and 0.03ms response time on a glossy, bright 27” QHD OLED display. React instantly, spot every detail, and outpace your opponents in every frame with outrageous speed and clarity.

  • Next-Level OLED Brightness, For Next-Level Play

    The brilliant OLED display brings every scene to life with jaw-dropping color and intensity. Delivering a standard 275 nits of brightness and peaking at 1300 nits, your games shine with vivid clarity—keeping dark corners detailed, explosions dazzling, and the action always visible no matter the environment.

  • VESA DisplayHDR True Black 400

    An OLED display with VESA DisplayHDR True Black 400 and a 1.5M:1 contrast ratio deliver deep blacks and dazzling highlights, so you catch every hidden detail in dark scenes and every spark in the bright ones. With up to 98.5% DCI-P3 color, your worlds burst with vibrant intensity—making every game feel more alive.

  • Three UL Certifications. One Clear Advantage for Eye Comfort.

    This UltraGear OLED display is three times UL-certified—for Anti-Glare, Flicker-Free, and Low Blue Light. Combined with a glossy finish, the display helps reduce distractions, keep your view crisp, and maintain visual comfort—so you can stay focused and perform at your best, even during extended gaming sessions.²

  • 27” OLED Brilliance with up to 240Hz of Game-Changing Speed

    Experience ultra-smooth, tear-free gameplay with up to 240Hz refresh rate on a glossy, bright 27” QHD OLED display.

  • 0.03ms (GtG): Astounding Gaming Speed

    Play with a near-instantaneous 0.03ms response time, which minimizes ghosting for gaming visuals that are sharp, clear and buttery smooth.

  • Serious Connectivity for Serious Gamers

    UltraGear OLED is built for next-gen consoles or PC with dual HDMI, DP 1.4, USB upstream and two downstream ports.³

  • NVIDIA G-SYNC Compatible & AMD FreeSync Premium Pro

    NVIDIA G-SYNC Compatible⁴ and AMD FreeSync Premium Pro deliver smooth, tear-free, low-latency gaming with high refresh rates—so every frame stays sharp, no matter your GPU.

  • OLED Care Made Easy

    Adjust brightness and enable OLED protection features that help mitigate image retention. Automatic pixel care cycles run during standby or shutdown, and gamers can easily fine-tune performance settings or switch display modes for optimal gameplay—all from the On-Screen Control settings.

  • Unlock Your Potential with Advanced Gaming Features

    Dynamic Action Sync reduces input lag for real-time response. Black Stabilizer brightens dark scenes to see what's hidden. FPS Counter shows your real-time frame rate. Crosshair enhances precision for deadly accuracy.

  • Seamless Display, and Adjustable to Gamer Specs

    Dive into gameplay on the virtually borderless 27” OLED screen. The slim-profile display has adjustable height, tilt, swivel and pivot controls that let you customize your view, while 3-pole headphone jack keeps audio loud and clear.

Specifications

  • Refresh Rate
    240Hz
    Maximum Resolution
    2560 x 1440
    Response Time
    0.03 milliseconds
    Synchronization Technology
    G-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync Premium Pro (AMD Adaptive Sync)
    Screen Size
    26.5 inches
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Reviews

Rating 4.7 out of 5 stars with 43 reviews

95% would recommend to a friend

Top Mentions

  • OLED Quality (8)
  • Build Quality (4)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    LG UltraGear OLED 27GX704A-B Review — 9/10

    For a $400 monitor the LG OLED is honestly impressive. Coming from an iMac 5K Retina display I was curious to see how much of a difference there would be especially in color reproduction and overall image quality. To my surprise the LG came surprisingly close to the iMac in color quality delivering rich vibrant colors and the deep blacks that OLED is known for. I set both displays to the same brightness level to make the comparison as fair as possible. The biggest difference I noticed wasn't really the colors but the level of detail and pixel density. The iMac's 5K Retina display looks sharper with finer details and smaller less noticeable pixels. That's understandable considering the iMac has a much higher resolution for its screen size while the LG is a 1440p 2K display. What impressed me most was how good the LG looked despite that difference. Its colors are beautiful its contrast is excellent and the overall picture quality exceeded my expectations for the price. Considering that it's a 27-inch OLED gaming monitor with a 240Hz refresh rate getting this kind of image quality for around $400 feels like a great deal. My rating is 9/10. For the price the OLED technology the vibrant colors and the 1440p resolution this monitor is an excellent value. The main trade-off is sharpness and pixel density compared with a 5K Retina display but honestly the LG impressed me far more than I expected.

    Posted by Luis

  • Rated 5 out of 5 stars

    Awesome, buy it

    Got this on sale and with a coupon, totally worth it to splurge on a dreamy oled either way

    This review is from LG - UltraGear 27" QHD Glossy OLED 240Hz Gaming Monitor 0.03ms NVIDIA G-SYNC AMD FreeSync Premium Pro DisplayHDR TrueBlack400 - Black

    Posted by PAIGEM

  • Rated 5 out of 5 stars

    Genuinely amazing.

    This monitor is such an upgrade compared to my last one. I love the way it looks and how it fits so well with the rest of my setup for a price that won’t make my wallet die. Mostly using this to play fast paced games and I recommend 100 time out of 10.

    Posted by TheMan10what

  • Rated 5 out of 5 stars

    Lg Oled

    Love the bright colors and deep inky blacks, if you’re a fan of glossy oled, this is the monitor for you

    This review is from LG - UltraGear 27" QHD Glossy OLED 240Hz Gaming Monitor 0.03ms NVIDIA G-SYNC AMD FreeSync Premium Pro DisplayHDR TrueBlack400 - Black

    Posted by Josh

  • Rated 5 out of 5 stars

    Need I Say More

    Highly Highly impressed with this monitor OLED for the win I can't wait to load up GTA VI its about to look insane.

    Posted by Bossdaddy

  • Rated 4 out of 5 stars

    Great monitor, but has one big flaw

    [This review was collected as part of a promotion.] This is a great monitor with a glorious glossy panel which makes the image clear compared to matte ones. It has a really big flaw though, which is an automatic brightness which cannot be disabled anywhere in the OSD. It bumps up the brightness when viewing bright content and dims when viewing dark content. It is very annoying and my eyes are very sensitive for such things. I have disabled Smart Energy Saving and Peak Brightness with no effect. I really hope that LG sees this and fixes with a Firmware Update. Please LG, I'd like to keep this monitor and don't have to deal with this auto brightness algorithm.

    Originally posted on lg.com

    Posted by Metaphizix

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Pros for LG - UltraGear 27" QHD Glossy OLED 240Hz Gaming Monitor 0.03ms NVIDIA G-SYNC AMD FreeSync Premium Pro DisplayHDR TrueBlack400 - Black
OLED Quality, Build QualityOLED Quality, Overall Performance, Refresh Rate, DesignOLED Quality, Overall Performance, Refresh Rate, Stand AdjustabilityBuild Quality, OLED Quality, Refresh Rate, Brightness, Performance
Cons for LG - UltraGear 27" QHD Glossy OLED 240Hz Gaming Monitor 0.03ms NVIDIA G-SYNC AMD FreeSync Premium Pro DisplayHDR TrueBlack400 - Black
There were no cons for this product—Text Clarity, Pixel CleaningBrightness, Audio Output, USB PortsErgonomics, Connectivity

Specs

Questions & Answers

  • Is this a tandem OLED panel/screen?

    Yes

    Answered by Bossdaddy
  • what speakers will work well with this one.

    buy any on amazon and connect it to your pc / laptop :)

    Answered by PAIGEM
  • Does this come with a display port cable

    Yes, it also comes with an HDMI cable also

    Answered by ZACKE
  • Do the device have OLED burn warranty?

    yes

    Answered by TREB
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